* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #d7263d; /* rojo primario */
    --secondary-color: #9e1b2f; /* rojo oscuro */
    --accent-color: #ff6b6b; /* acento claro */
    --accent-rgb: 215, 38, 61; /* RGB base para sombras/accentes */
    --accent-shadow: rgba(var(--accent-rgb), 0.4); /* sombra/acento por defecto */
    --text-dark: #2b0f10; /* texto principal, casi negro con matiz rojo */
    --text-light: #7a3b3f; /* texto secundario más suave */
    --bg-light: #fff5f6; /* fondo muy claro con tinte rojizo */
    --white: #ffffff;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ==================== MENÚ DESPLEGABLE ==================== */
.menu-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
}

.menu-btn {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 24px;
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.menu-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 15px 40px var(--accent-shadow);
}

.dropdown-menu {
    position: absolute;
    top: 70px;
    right: 0;
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    min-width: 200px;
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
}

.dropdown-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.menu-link {
    display: block;
    padding: 15px 20px;
    color: var(--text-dark);
    text-decoration: none;
    transition: var(--transition);
    border-left: 4px solid transparent;
}

.menu-link:hover {
    background: var(--bg-light);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    padding-left: 25px;
}

/* ==================== PÁGINAS ==================== */
.page {
    min-height: 100vh;
    display: none;
    animation: fadeIn 0.5s ease-in;
}

.page.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
}

/* ==================== PÁGINA INICIO / CARRUSEL ==================== */
#inicio {
    position: relative;
    height: 100vh;
    overflow: hidden;
}

.carousel-container {
    width: 100%;
    height: 100%;
    position: relative;
}

.carousel-slide {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
}

.carousel-slide.active {
    opacity: 1;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slide-content {
    position: absolute;
    bottom: 40px;
    left: 40px;
    color: var(--white);
    z-index: 2;
    animation: slideUp 0.8s ease;
}

.slide-content h2 {
    font-size: 48px;
    margin-bottom: 10px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
}

.slide-content p {
    font-size: 20px;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Overlay de bienvenida */
.welcome-overlay {
    position: fixed;
    top: 20px; /* situar en la parte superior */
    left: 50%;
    transform: translate(-50%, 0); /* centrar horizontalmente, no centrar verticalmente */
    text-align: center;
    color: var(--white);
    z-index: 1001; /* asegurarse que quede encima del menú */
    animation: fadeInScale 1s ease 0.5s both;
}

.welcome-overlay h1 {
    font-size: 64px;
    margin-bottom: 0; /* eliminar separación para mantener en una línea */
    color: #ffffff; /* título blanco */
    /* sombra negra para contraste */
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
    font-weight: 700;
    white-space: nowrap; /* forzar una sola línea */
    overflow: visible;
}

.welcome-overlay p {
    font-size: 24px;
    margin-bottom: 30px;
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.6);
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: translate(-50%, -10%) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translate(-50%, 0) scale(1);
    }
}

/* Botones de carrusel */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.3);
    border: none;
    color: var(--white);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    z-index: 4;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-btn:hover {
    background: rgba(255, 255, 255, 0.6);
    transform: translateY(-50%) scale(1.1);
}

.carousel-btn.prev {
    left: 30px;
}

.carousel-btn.next {
    right: 30px;
}

/* Indicadores de puntos */
.carousel-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 4;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--white);
    transform: scale(1.3);
}

.dot:hover {
    background: rgba(255, 255, 255, 0.8);
}

/* Botón CTA */
.cta-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border: none;
    padding: 15px 40px;
    font-size: 18px;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
    box-shadow: 0 10px 25px rgba(215, 38, 61, 0.4);
}

.cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(215, 38, 61, 0.6);
}

/* ==================== PÁGINA SOBRE MÍ ==================== */
#sobre-mi {
    background: var(--bg-light);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h1 {
    font-size: 48px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.about-text h2 {
    font-size: 28px;
    margin-top: 40px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.about-text p {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.8;
}

.skills-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 40px;
}

.skill-card {
    background: var(--white);
    padding: 25px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.skill-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
}

.skill-card i {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.skill-card h3 {
    color: var(--text-dark);
    margin-bottom: 10px;
}

.skill-card p {
    color: var(--text-light);
    font-size: 14px;
}

.experience-item {
    background: var(--white);
    padding: 25px;
    border-radius: 10px;
    margin-bottom: 20px;
    border-left: 4px solid var(--primary-color);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.experience-item h3 {
    color: var(--text-dark);
    font-size: 20px;
    margin-bottom: 5px;
}

.experience-item .company {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 10px;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

/* ==================== PÁGINA PROYECTOS ==================== */
#proyectos {
    background: var(--white);
}
#proyectos h1 {
    font-size: 48px;
    text-align: center;
    margin-bottom: 10px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 18px;
    margin-bottom: 50px;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.project-card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-15px);
    box-shadow: var(--shadow);
}

.project-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(215, 38, 61, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-link {
    background: var(--white);
    color: var(--primary-color);
    padding: 12px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.project-link:hover {
    transform: scale(1.05);
}

.project-info {
    padding: 25px;
}

.project-info h3 {
    color: var(--text-dark);
    margin-bottom: 10px;
    font-size: 20px;
}

.project-info p {
    color: var(--text-light);
    margin-bottom: 15px;
    font-size: 14px;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.project-tech span {
    background: var(--bg-light);
    color: var(--primary-color);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

/* ==================== PÁGINA CONTACTO ==================== */
#contacto {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

#contacto h1 {
    color: var(--white);
    font-size: 48px;
    text-align: center;
    margin-bottom: 10px;
}

#contacto .section-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 40px;
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 25px;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--bg-light);
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(215, 38, 61, 0.1);
}

.form-group input.error,
.form-group textarea.error {
    border-color: #e53e3e;
}

.error-message {
    color: #e53e3e;
    font-size: 12px;
    margin-top: 5px;
    display: block;
    min-height: 16px;
}

.submit-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(215, 38, 61, 0.3);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(215, 38, 61, 0.5);
}

.submit-btn:active {
    transform: translateY(0);
}

.form-message {
    margin-top: 20px;
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    display: none;
}

.form-message.success {
    display: block;
    background: #c6f6d5;
    color: #22543d;
    border: 1px solid #9ae6b4;
}

.form-message.error {
    display: block;
    background: #fed7d7;
    color: #742a2a;
    border: 1px solid #fc8181;
}

.contact-info {
    color: var(--white);
}

.info-item {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
    align-items: flex-start;
}

.info-item i {
    font-size: 28px;
    flex-shrink: 0;
    margin-top: 5px;
}

.info-item h3 {
    font-size: 20px;
    margin-bottom: 8px;
}

.info-item p {
    opacity: 0.9;
}

.info-item a {
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
}

.info-item a:hover {
    opacity: 0.7;
    text-decoration: underline;
}

.social-links h3 {
    font-size: 20px;
    margin-bottom: 20px;
    margin-top: 40px;
}

.social-icons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.social-icons a {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.social-icons a:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-5px);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }

    .carousel-btn.prev {
        left: 15px;
    }

    .carousel-btn.next {
        right: 15px;
    }

    .welcome-overlay h1 {
        font-size: 36px;
    }

    .welcome-overlay p {
        font-size: 16px;
    }

    .slide-content h2 {
        font-size: 32px;
    }

    .slide-content p {
        font-size: 16px;
    }

    #sobre-mi h1,
    #proyectos h1,
    #contacto h1 {
        font-size: 36px;
    }

    /* Ajustes para el overlay de bienvenida en pantallas medianas */
    .welcome-overlay {
        top: 14px;
    }

    .welcome-overlay h1 {
        font-size: 36px; /* reducir para que quepa en una línea en pantallas medianas */
        white-space: nowrap;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .menu-container {
        top: 15px;
        right: 15px;
    }

    .menu-btn {
        width: 45px;
        height: 45px;
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 40px 15px;
    }

    .welcome-overlay h1 {
        font-size: 28px;
    }

    .slide-content h2 {
        font-size: 24px;
    }

    .carousel-dots {
        bottom: 15px;
    }

    .dot {
        width: 10px;
        height: 10px;
    }

    /* Ajustes para el overlay de bienvenida en pantallas pequeñas */
    .welcome-overlay {
        top: 8px;
        padding: 0 12px; /* evitar que se pegue a los bordes */
    }

    .welcome-overlay h1 {
        font-size: 28px; /* reducir para ajustar */
        white-space: normal; /* permitir wrap si es necesario */
        line-height: 1.1;
    }
}